Electricity

Question 1

ORIGIN OF ELECTRICITY

-Matter

Answer 1

Everything that has mass and occupies an space (volume)

Question 2

Matter is made up of…

Answer 2

Atoms. -> Greek “indivisible”(is not true)

Question 3

Atoms representation in 2d

His parts

Answer 3

|——protons(+)Charge
Nucleus———|
                            |——neutron(/)Charge=0
Shells——— Electrons(-)——ELECTRICITY
                                |
                          MOVE!!!

Question 4

Were are atoms reprecentated

Answer 4

Atoms are reprecentated in the PERIODIC TABLE

Question 5

ELECTRIC CURRENT

Answer 5

Is the continuous movement of electrons from an atom to another.

Question 6

Law of electric charges

Answer 6

repel each Attract each

other (+)(-) other

Question 7

Types of materials

Conductors

Answer 7

Are materials that alow the electrical current to flow through them. Examples: Metals(Ag,Cu,Au,Al)

• silver -aluminium *H2O+Salt
• copper -gold

Question 8

Types of materials

Insulators(aislante)

Answer 8

Are materials that don’t allow, the electric current to flow through them.
Examples: Plastic, rubber, wood, wool, cotton, silk, paper, cardboard, glass,

Question 9

Types of materials

Semiconductor

Answer 9

Are material that conductor or not the electricity depending on the conditions.
Examples: Silicon(Si),Si14, Aluminium(Al).

Question 10

Types of electric current

-DC=Direct Current (corriente continua)

Answer 10

Image

Sources= battery or cell

Question 11

Types of electric current

-AC=Alternating Current

Answer 11

Image

Sourges: eolic energy, sea/wave, photovoltais plant, hydroelectric plant, thermal(co2) nuclear plants

Question 12

What is an electrical circuit?

Answer 12

A circuit is a closed loop through wich charges can continuosly move. It’s made of a material that can conduct electricity and some electrical components connected to it.

Question 13

Ohm’s Law

Answer 13

V= I . R
I= v/r
R= v/i